| A | B |
|---|
| binary fission | cell division used by bacteria |
| endospore | a thick protective membrane of bacteria |
| bacilli | rod-shaped bacteria |
| cocci | spherical bacteria |
| spirilla | long, spiral-shaped bacteria |
| decomposer | feeds on dead organic matter |
| parasitic | invades the body of another organism to obtain food |
| archaebacteria | oldest type of bacteria |
| antibiotics | medicines used to kill bacteria and other microorganisms |
| virus | microscopic particle that invades a cell and often destroys it |
| host | an organism that supports a parasite |
| bacteriophage | virus that attacks only bacteria |
| virus finds host cell | first step of lytic cycle |
| virus enters the cell | second step of lytic cycle |
| virus takes over cell | third step of lytic cycle |
| new virus breaks out of cell | fourth step of lytic cycle |
| flagella | hairlike structures that help bacteria move |
| consumers | obtain nutrients from other organisms |
| chlorophyll | green pigment needed for photosynthesis |
| prokaryote | cell without a nucleus |
| good bacteria | cheese and yogurt |
| bad bacteria | strep throat and salmonella |
